His son, Antoine Picon, is professor of the History of Architecture at Harvard Graduate School of Design; his daughter, Anne-Françoise, is a teacher of mathematics in Paris.
In 1987, Picon was the founder of the Groupe des Méthodes Physico-Chimiques contribuant à l'Archéologie (GMPCA), an association for the promotion, development and recognition of archaeometry in France.
It was open to all disciplines contributing to the field of archaeology and welcomed, most notably, natural scientists (geoarchaeologists, archaeozoologists, archaeobotanists etc.).
Maurice Picon's personal library and archives have been donated by his family to the Centre d’Etudes Alexandrines (CEAlex).
During celebrations to mark the 25th anniversary of the CEAlex, on 24 May 2015, The Maurice Picon Library was inaugurated along with a permanent website with access to his published works.